Colour dosemeters for high level radiation dosimetry

H. Schönbacher, F. Coninckx, A. Miller, G. Kruska, I. Wulf

    Research output: Contribution to journalJournal articleResearch

    Abstract

    Development work was undertaken in order to produce a visual dosemeter system for measurement of radiation levels around the present and future high energy particle accelerators. This dosemeter should exhibit radiation induced colours in the visible part of the spectrum leading to a visual dose interpretation or a dose measurement with a simple instrument such as a portable reflecting densitometer in the range of 10(3) to 10(6) Gy. Two projects were investigated: (1) a thin plastic film with a self adhesive tape containing a radiochromic dye which induces a colour change when exposed to ionising radiation; and (2) a paint containing a base substance with a pigment. The paint dosemeter remained unaffected by irradiation up to 3 x 10(4) Gy while the film dosemeter showed a measurable colour change from 10(4) Gy to 5 x 10(5) Gy. Above 10(6) Gy the film dosemeter is destroyed by radiation. Samples of paint and film dosemeters were installed in the 450 GeV Super Proton Synchrotron (SPS) at CERN and irradiated during operation for more than two years. Within the useful range of the dosemeters, dose comparisons with other dosemeter types gave satisfactory results. Application in other fields such as commercial irradiation facilities is envisaged. Calibration of the dosemeters was made with a Co-60 source up to 10(6) Gy.
    Original languageEnglish
    JournalRadiation Protection Dosimetry
    Volume34
    Issue number1-4
    Pages (from-to)311-314
    ISSN0144-8420
    Publication statusPublished - 1990

    Cite this

    Schönbacher, H., Coninckx, F., Miller, A., Kruska, G., & Wulf, I. (1990). Colour dosemeters for high level radiation dosimetry. Radiation Protection Dosimetry, 34(1-4), 311-314.